Firmware
Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin
Amcrest firmware released Aug 13, 2021. May work with 19 devices, including CA-HZ1023UT, CA-HZ1031UT, CA-HZ2012T-S2.
- Released
- Aug 13, 2021
- Version
- V2.623.00AC005.0 210813
- Size
- 28.6 MB
- Hardware
- 19 devices
Download
Permanent copy on the Internet Archive (item page)
- MD5
85fa5ee4df54284fa64e5668cee3ae15- SHA-256
b5fe811c95c4872e03c158810dc2b9a0a3787b1fd38fa141ef89f2823561ed55- Changelog
- Release notes
Where it's published
Available from
Amcrest
Amcrest
Current- Only for IP4M-1053EW
- Only for IP2M-858W
- For IP2M-866W only
- Only for IP2M-853EW, IP2M-853EB, and IP2M-853E.
- Only for IP2M-866E
V2.623.00AC005.0 210813 · Listed date Aug 13, 2021
Vendor link (amcrest-firmwares.s3.amazonaws.com)
Previously at 5 other addresses
- https://amcrest-firmwares.s3.amazonaws.com/Curent+firmware/IP4M-1053EW/Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin (last seen Oct 6, 2026)
- https://amcrest-firmwares.s3.amazonaws.com/Curent+firmware/IP2M-866W/Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin (last seen Oct 22, 2026)
- https://amcrest-firmwares.s3.amazonaws.com/Curent+firmware/IP2M-858W/Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin (last seen Oct 22, 2026)
- https://amcrest-firmwares.s3.amazonaws.com/Curent+firmware/IP2M-853EW/Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin (last seen Oct 22, 2026)
- https://amcrest-firmwares.s3.amazonaws.com/Curent+firmware/IP2M-866EW/Amcrest_SD-Mao-Rhea_Eng_N_Stream3_AMCREST_V2.623.00AC005.0.R.210813.bin (last seen Oct 22, 2026)
Compatible hardware
Hardware IDs this firmware's installer accepts (19 devices).
- CA-HZ1023UT
- CA-HZ1031UT
- CA-HZ2012T-S2
- CA-HZ2023T-S2
- CA-HZ2023UT
- CA-HZ2025T-S2
- CA-HZ2030T-S2
- CA-HZ4012T-S2
- CA-HZ4023T-S2
- CA-HZ4025T-S2
- PTZ1204T-GN-S2
- SD12200T-GN-28-S2
- SD12200T-GN-36-S2
- SD12203T-GN-S2
- SD22204T-GN-HK-S2
- SD22206T-GN-S2
- SD22404T-GN-S2
- SD29D206T-HNG-D-S2
- SD29D404T-HNG-D-S2
Where these IDs come from
- Install: the installer's device list (board families), 5 IDs, vendor Amcrest (not counted: a more specific list exists)
- check.img: the device's own hardware check list, 19 IDs
Technical details
Read from inside the firmware (dahua package (zip variant)).
- SoC
- Ambarella S3L
- Architecture
- arm
- OEM build
- Amcrest
- Kernel
- Linux 3.10.73
- Bootloader
- U-Boot 2010.06-svn5213
- Flash
- 126.0 MB NAND
- Image dates
- Aug 13, 2021
- Security
- Signed, not encrypted
- Language & video
- English by default · NTSC
Flash layout: 15 partitions, 9 written by this firmware
From the firmware's partition table (partitionV2.txt).
| Partition | Start | End | Size | Image | Filesystem | Built |
|---|---|---|---|---|---|---|
| MinBoot | 0x0 | 0x100000 | 1.0 MB | dhboot-min.bin.img | — | 2021-08-13 |
| U-Boot | 0x200000 | 0x300000 | 1.0 MB | dhboot.bin.img | — | 2021-08-13 |
| hwid | 0x300000 | 0x400000 | 1.0 MB | not written | — | — |
| updateflag | 0x400000 | 0x500000 | 1.0 MB | not written | — | — |
| partition(ro) | 0x500000 | 0x600000 | 1.0 MB | partition-x.cramfs.img | cramfs | 2021-08-13 |
| custom(ro) | 0x600000 | 0x940000 | 3.3 MB | custom-x.squashfs.img | squashfs | 2021-08-13 |
| product(ro) | 0x940000 | 0xc80000 | 3.3 MB | pd-x.squashfs.img | squashfs | 2021-08-13 |
| Kernel | 0xc80000 | 0x1200000 | 5.5 MB | kernel.img | — | 2021-08-13 |
| romfs(ro) | 0x1200000 | 0x1600000 | 4.0 MB | romfs-x.squashfs.img | squashfs | 2021-08-13 |
| web(ro) | 0x1600000 | 0x1e00000 | 8.0 MB | web-x.squashfs.img | squashfs | 2021-08-13 |
| user(ro) | 0x1e00000 | 0x3a80000 | 28.5 MB | user-x.squashfs.img | squashfs | 2021-08-13 |
| lens | 0x7100000 | 0x7200000 | 1.0 MB | not written | — | — |
| syslog | 0x7200000 | 0x7600000 | 4.0 MB | not written | ubi | — |
| config | 0x7600000 | 0x7a00000 | 4.0 MB | not written | ubi | — |
| backup | 0x7a00000 | 0x7e00000 | 4.0 MB | not written | ubi | — |
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